'Pressure makes us, though. You start off as coal and the pressure makes you a diamond.' She didn't correct his knowledge of diamonds. She didn't tell him that while coal and diamonds are both carbon, coal is too impure to be able, under whatever pressure, to become a diamond. According to science, you start off as coal and you end up as coal. Maybe that was the real-life lesson.
- Matt Haig – "The Midnight Library"
